STIGQter STIGQter: STIG Summary: Red Hat Enterprise Linux 7 Security Technical Implementation Guide Version: 3 Release: 3 Benchmark Date: 23 Apr 2021:

The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) communications.

DISA Rule

SV-204583r603261_rule

Vulnerability Number

V-204583

Group Title

SRG-OS-000250-GPOS-00093

Rule Version

RHEL-07-040200

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the operating system to implement cryptography to protect the integrity of LDAP remote access sessions.

Add or modify the following line in "/etc/sssd/sssd.conf":

ldap_tls_cacert = /etc/pki/tls/certs/ca-bundle.crt

Check Contents

If LDAP is not being utilized, this requirement is Not Applicable.

Verify the operating system implements cryptography to protect the integrity of remote LDAP access sessions.

To determine if LDAP is being used for authentication, use the following command:

# systemctl status sssd.service
sssd.service - System Security Services Daemon
Loaded: loaded (/usr/lib/systemd/system/sssd.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2018-06-27 10:58:11 EST; 1h 50min ago

If the "sssd.service" is "active", then LDAP is being used.

Determine the "id_provider" that the LDAP is currently using:

# grep -i "id_provider" /etc/sssd/sssd.conf

id_provider = ad

If "id_provider" is set to "ad", this is Not Applicable.

Check the path to the X.509 certificate for peer authentication with the following command:

# grep -i tls_cacert /etc/sssd/sssd.conf

ldap_tls_cacert = /etc/pki/tls/certs/ca-bundle.crt

Verify the "ldap_tls_cacert" option points to a file that contains the trusted CA certificate.

If this file does not exist, or the option is commented out or missing, this is a finding.

Vulnerability Number

V-204583

Documentable

False

Rule Version

RHEL-07-040200

Severity Override Guidance

If LDAP is not being utilized, this requirement is Not Applicable.

Verify the operating system implements cryptography to protect the integrity of remote LDAP access sessions.

To determine if LDAP is being used for authentication, use the following command:

# systemctl status sssd.service
sssd.service - System Security Services Daemon
Loaded: loaded (/usr/lib/systemd/system/sssd.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2018-06-27 10:58:11 EST; 1h 50min ago

If the "sssd.service" is "active", then LDAP is being used.

Determine the "id_provider" that the LDAP is currently using:

# grep -i "id_provider" /etc/sssd/sssd.conf

id_provider = ad

If "id_provider" is set to "ad", this is Not Applicable.

Check the path to the X.509 certificate for peer authentication with the following command:

# grep -i tls_cacert /etc/sssd/sssd.conf

ldap_tls_cacert = /etc/pki/tls/certs/ca-bundle.crt

Verify the "ldap_tls_cacert" option points to a file that contains the trusted CA certificate.

If this file does not exist, or the option is commented out or missing, this is a finding.

Check Content Reference

M

Target Key

2899

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